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J/A+AS/139/305 Position of Saturn's satellites (1982-1988) (Veiga+, 1999)
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Photographic positions for the first eight satellites of Saturn
Veiga C.H., Vieira Martins R.
<Astron. Astrophys. Suppl. Ser. 139, 305 (1999)>
=1999A&AS..139..305V (SIMBAD/NED BibCode)
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ADC_Keywords: Planets ; Positional data
Keywords: astrometry - planets and satellites - Saturn
Abstract:
Astrometric positions of the first eight Saturnian satellites obtained
from 138 photographic plates taken in 30 nights in the years 1982 to
1988 are presented. All positions are compared with those calculated
by the theory TASS1.7 (Vienne & Duriez, 1998). The observed minus
calculated residuals give rise to standard deviations smaller than
0.3".
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 81 813 *List of observed positions of the Saturnian
satellite
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Note on table2.dat: The format of these table is the same used in the catalogue
of Strugnell and Taylor (1990A&AS...83..289S). The reference system is defined
by the mean equator and equinox J2000.
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See also:
J/A+AS/121/65 : 1990-1994 Saturn's satellites astrometry (Harper+ 1997)
J/A+AS/136/257 : Saturn's satellites in 1995/97 (Harper+ 1999)
J/A+AS/120/107 : 1989-1994 CCD observations of Triton (Veiga+ 1996)
J/A+AS/131/291 : 1995-1997 CCD positions of Triton (Veiga+ 1998)
J/A+AS/136/445 : CCD observations of Nereid (Veiga 1999)
J/A+AS/143/405 : Astrometric observations of Helene (Veiga+, 2000)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Opp Opposition year code number (105=1989, 111=1988)
5- 8 I4 yr Obs.Y Year of observation
10- 11 I2 --- Obs.M Month of observation
13- 21 F9.6 d Obs.D UTC date of observation (DD.dddddd)
23- 26 F4.1 s ET-UTC ET-UTC to the nearest tenth of second
28- 30 I3 ---- Code [874] Observatory code
(874: Laboratorio Nacional de Astrofisica)
32- 33 A2 --- Ref [**] Reference code (no entries)
35 I1 --- ObsType [2] Observation type ({Delta}RA, {Delta}DE)
37- 38 I2 --- Sat Subject satellite, reference satellite (1)
40 I1 --- Obs1 [0/1] Presence flag for first observation
of pair (2)
41 I1 --- Obs2 [0/1] Presence flag for second observation
of pair (2)
43- 53 F11.6 s DRA Position {Delta}RA
55- 65 F11.6 arcsec DDE Position {Delta}DE
67 I1 --- Sys [2] Reference system (J2000.0)
69 I1 --- Frame [1] Reference frame (geocentric)
71- 75 F5.2 arcsec Res1 (O-C) {Delta}RAcosDE residual for first
observation of pair
77- 81 F5.2 arcsec Res2 (O-C) {Delta}RAcosDE residual for second
observation of pair
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Note (1): Satellite numbers used in the catalogue conform to the conventional
IAU numbering system. 0 is used to denote the planet.
1: Mimas; 2:Enceladus; 3: Tethys; 4: Dione; 5: Rhea; 6: Titan;
7: Hyperion; 8: Iapetus; 9: Phoebe
Note (2): 0: observation absent
1: observation present
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Acknowledgements: Carlos Henrique Veiga <cave@obsn.on.br>
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(End) Patricia Bauer [CDS] 05-Aug-1999